Welding and cutting apparatus



F. W. BECKER WELDING AND CUTTING APPARATUS .day l. l28.

Flled March 2, 1921 2 Sheetsheet l Jung y 21., 1927.

F. W. BECKER WELDING AND CUTTING APPARATUS Fled'ldaroh 2, 1 27 9 2 Sheets-Sheet 2 @www /Gm ATTORNEYS emerse aan@ 21, i927.

l; f. T gl, S

' tessere PATENT erstes.

FREDERCK W. BECKER, F EAST RUTHERFORD, NEW JERSEY.

WELDING AND CUTTING APR/ATUS;

Application led Eieren 2, 1927.

mixture of ox "Gen and li uid tuel underpressure to a `burner through specially constructed tubing in which the fuel automatically evaporates and in conjunction with the oxygen supplies a regulated flame which serves the desired purpose. .The pressure is 'brought onto the liquid fuel by means of an air pump installed in the fuel container in the ordinary manner as With soldering` lamps. ln devices of this character it is im* portant to control or regulate the tlow et gases so as to obtain a proper' mixture of the saine according to the Work to be performed, and a further ob'jeet ot Iny invention is to provide means for so doing: and furthermore to effect. economy of the gases by stopping 2U their flow when the apparatus is 'not in use, and again givingr passage to the when 'the apparatus is to resunie'work.

The details of the construction and operation ot nrv improved apparatus are hereinafter particularly described.

v"lu the accompanying drawingsz.

Figure l is a side view of a Welding apparatusembodying niv invention, partly in seotion and breiten away in length. :1.1 I lig'. 2 is an enlarged cross section on the broken line of Fig. l.

Fife. 3 is an enlarged cross section on the broken line 3--3 of Fie. l,

Fig. 4. is a similar vieuto Fig. 1 showing :15 the improved Weldine device provided with an attaclnnent for Cuttingr purposes.

Fie. 5 is a top vieuY ol thesaine partly in section, with the forward end broken off. Figftl is a section on the line 6-6 of Fig. 4o Ll,aiul

Fig. l' is a detailed view of the trigger Valve shm'vn in Figs. d and 5. Referring' to the Figs. 1, 2 drawings, 10 indicates a cylindrical sleeve 45 forming the handle ot` the instrument.

l'nto the rear end et the handle is Vfitted a block 1l having an exteriorly threaded nipple l2 projectingr inwardly of the' handle, and an interior-ly threaded recess 13 in its u outer side into which isscreu'ed a plug 14 projecting t'roin a valve chamber l5 there being a bore through the plug 14, block '11, and nipple l2 communicating with the valve Chamand 3 of they Serial No, 171,970.

ber 15. Another exteriorly threaded nip* ple 16 extends from the opposite side of the Valve chamber l5 being provided -with a bore into which enters one end of a flexible tube 17 secured by a loclr nut i8. This tube l? extends to an oxygen tank' (not shown).

@ne rend of a tubular elbow i9 is litted vinto the bore in the plug ll. and into the,

other end of this elbow one end of an oxygen tube 2O is `slidably entered, there being a stutling,y box 2l screwed upon the threaded plug ll, which prevents leakage of the oxy-h gen at such connections.

A block .22 is fitted into the forward end ol' the handle l0 having; exteriorly threaded nipple extendingl irmar'clly ol the handle, there beingl a bore through this nipple and the block 2Q, through which the tube il() extends, a stutling' box 2l being screwed over the nipple Q2 extending beyond the handle l0 is preterably 'somewhatreduced in diameter and exteriorly7 threaded having;- a recess One That portion o1" the block i end of a tube is seated against the recessed end ot the block 22 and is held in position by a nut 2T screwed over the threaded end o; the block and against the annular flange 28 on the tube 26.

lllithin the tube 26 and bearing againstthe salue is another tube` 2S) extending the Whole length of the tube Fitted `Within the forward end of the tube L Q9, is a valve casing' 3C, exteriorly threaded into ulrich the forward end ot thetube extends. This easing 30 1s also iartly threaded interiorly, there being a threaded Collar Sllixed to the tube Q0 enguging such iuteriorly `threaded portion of the'easing 30. This collar 3l is provided with spaced longitudinal slots 32 tor the purpose herealter described. l

Upon the extreme forward end of the oxygen tube 2O is fixed a valve 33, which may be adjusted nearer to or vfurther troniits seat 34 to regulate the tlouv of gases by ineens hereafter described.

The burner head 35, is removably eonneeted to the valve easing 30 by a mit 36; 37 indicates the lanie nozzle, which is removably attached to--the burner head, preferably by providingl a threaded :portion v'which is screwed intothe lower end of the head 3o, which is interiorly threaded atthat point,'

ene

'teel'iefi o 'lille heerleeeozrfiieg to loe 'Week to ee peiflfoi'meel., The bumei* heed pio vided. with :in if. 'tegmi upwei'diy ineimel ,projection kevin v eeiitirei here, to 'whim is connected un euxiiieiy louiuei l' fesirefl, e ehielfi i0 may employed lao Shown in Fie'. 'L

The supply oi oxygen to the uoe 2O is i'eguleted the dial; veive el. Within @lie Valve eimuibei l5.

The outei eed of the block ii. has e. tiireeefif eel. hollow siem i2 intojwliieli one end'o'l' a 'uel, supply pipe 43 is ieserted. A' iexibie cube 44: extends :from e container (not shown) for the liquid `fuel and connects with thieeiifl of the pipe 43 the connection being secured by e mit 5. I

The fuel pipe L3 extends through a, fube 46 Within 'elle handle .l0 eucl. its jo'iwerenc). is iiieiinei upwedly :incl communicates with the ieeess 25 in the block Surrounding the oxygen tube' 20 bewee liiie recessed eed oi 'the block 9,2 ami the vulve easing 30 is e peeking l? of esbeetue iimeriel. 'which ie Wound 'with e. Wire binder e8 so that; 1lier-e is nei'iow leif'l; between the packing 47 end the tube 29 foi' the passage of' the liquid fuel which evepoiutee upon ieaeleiiig that portion Vlieeieell by the auxiliary ouizier '39, both gases mixing in the' buinei' heed 3",u

A bevel genre@ is sup'poi'tedfwiifhin. the

sieeve l0 by a bref-,kein 50 fixecl to the oxygen tube 2O the stem 5i of ilee geen" extending; ihiougli en elonge"ed slot 55 in tlie sleeve 10, enel pfovieleol ai; its top 'with e heeel or iiumb (liek 52. y

This beveled em Li9 meeliee witli anotherf beveled iiueil to the ube QU* Wlieieloy lille tube() een be moved liela'werfl or oi wiwi to open oi* close the vulve 33 thus ieg;- uletiiig' @lm .silplily liquid fuel to 'iL/ue liulnei' liezig'lf'. 'Eiie'tlougitu'diiiei Slots 32 in alle colui 31 permit the peseege oi the liquid fuel. gus into the burner 'heed 35.- The ou ei euriace of the. sleeve o1' handle lu mey loe lmuled es al, 54 if deeiie..

1Vlietlie the appare/tus 'is beleg used ier Welding oi' cutting purposes, vfue opereiiou ,continues as herenbefore cleseibecl, but. #for cutting; use, e, gxeeter supply aud pressure oi oxygen is required, and for' this purpose l provide eu edditioiiel supply mbe 56 foi" the oxygen ges, one emi. oi which tube is connected with the buine: head. 'by e coupling nui, 5i", elle 4biuiiei heed being iii euoii euse pevidefi will, eu iiiiegiel efeeeioe 58,

The w'ube 56 eieufls fallueugi'i .au opening in be block 22 Wiil'iiii tile sleeve ifi., its other emi being; receives?. into e reeeee ire 'iie "bleek 'il en pi'ovieleei Wioii eze opening 5G in egietei with e here im the bleek lll iiulieeiee needle valve siialaly ei'- enge@ witiiiiu au opening 63, in isloel ll sind eeeecl Within e lioiiow sleeve 5i-,also elifiulnle Wi-iliiii seid opening in the loloek 1i' having movementbeiweeu e. ehouldei' 65, uml

liellouf ping 66 which is screwed into? an 'enlarged tliieeded recese m the outer eed, of

the loleel ll there being e spiral spring (i7 within ,the hollow plug 66 and the liotom of elle sleeve/Sii., The stem 68,01 the Valve 62 puisses vliiougli a. smiling bei: 69, screwed e nipple ZO extemiiug fiom the block Li! ilie emi of. iie velue etere S8 is zhieeflei and is eoimeeiecl *to one emi oi e mme 7l by e mit 72. The other end of 'this fieme 7l is piovided with :i pin 273, kWliieii eu'eis en opening iii theblook 2:2, iu which ii. is Slidable The vulve G2 is opereiesi by, e. trigger 74,' the uppei" end of Wl'iieliis piiiotelly connected to a lug' 7 5,'11 pon the bloei: 22 below which it 'is pivoted et 76, fio one end of e link 77, the other end the link being pivotecl. 2111.78 lio the :frame 7j.. W'hee the triggei' 74 is drawn backward the needle Valve 62 pi'esses the sleevewf against the tension of the spring; GY against the iimei enti' of the plug (i6, which beings the opening Z9 in the valve 52 into iegieiei' with the more 6i. Upon ieleasing pressure upon the trigger 74, the exmusion of the spring 6( 'returns the parte kto e nozmel condition, shutting off communication with tliebore '6L B0 denotes another bofe Within the Hblock 11,0111@ enel of? which is normally Covered by lie sleeve Gli-,end uueoveze when 'Clie trge gei' valve is operated, allowing communica- "cion with the opening in .the bioek ll, in which the sleeve slides. The. other end of this boi'e SO communicates with enotliei bore 8l also wiihiii tlie block li. which bore 8l ie'elosecle its inner end,lits open other end ,communica-ting with e Short section of pipe 83,- ilie oihei end of whiel'i pipe is connected i oy e :ouil 82 to an elbow 85k upon mui eemmunieetiug wih `lie iueiioi" of ihe valve chamber l5,

' b5 Wili time be seezeL that when the 'tiig'ger valve is operated, an arldiiouel supply and pressure of oxygen ges Will be oreedinto lie buiuei' head 35 through the elbow 84, pipe $3 aud boi'eei, 80, 61, and. tube 56.

Tlie cutting nozzle 85 shown iu Fig. 4 may beeteeheol io elle burner head 35, in 'klee sememanuer es ie the nozzle 37 shown iu Fig. l lout' l'. p'fefei' to attach the nozzle 85 to die bumei ieee@ by means of e coupling imi; 85, es shown ie. Fig..

fleeiieol, although berms no peri of ier my invention, a spacing roller may be employed, sup orte-d by an arm 88, secured to the burner ead by a nut 89. y

My improved apparatus is equally Well adapted for Welding or cutting purposes; it is of strong construction and easily handled.

The flow of gases is regulated in such manner that a proper mixture is obtained ac cording to the work tobe performed, with economy of the gases. p

I claim as my invention:

1. A welding apparatus of the character described, comprising a, burner head, a burner nozzle detachably secured to one end of said head, a valve casing, means for detachably connecting the same to the burner head, a valve within said casing, an oxygen supply tube, means for securing said -valve to one end of said tube. a hollow handle, a

I block within one end of the handle. provided with an opening through which said tube 'slidably extends and recessed at one end.

another tube of larger diameter"surrounding said oxygentube between said Valve casing and the recessed end of said blo k, another block within the other end of the handle, a `tubular elbow within an opening in said block, a valve chamber exterior' of said hanvdle with which said elbow communicates, a

valve in said chamber, tubes extending from said valve chamber for connection with a source of oxygen'supply, -`the other end ot said oxygen tube slidably entering said clbow, means for moving the said oxygen supply tube to seat or unseat the valve at its forward end, ya liquid fuel tube extending .through said blocks in the handle with one o. i1 end communicatingwith the recess in .t e end of said first block and the interior of the tube surrounding the oxygen tube. and means attached to the other end of said fuel tube for connection with a source of fuel supply.

2. A welding apparatus of the character described, comprising a burner head, a burnerA nozzle detachably connected to one. ,end of the same, d valve casing, means for detachably connecting the same to the other end of the burner head, a valve within saidV casing, an oxygen supply tube','mea.ns for securing sa1d valve to one end of said tube, a hollow handle, a block within one end of said handle provided with an opening, through'which said tube slidably extends, another tube of larger diameter surrounding vsaid oxygen supply tube with one end supported on said valve casing and provided with an annular flange at its other end, means for detachably scuring its flanged'` end to said block, another tube within said larger tube -in contact therewitln another block in the other end of said handle, a tubular elbow within an opening in said second block, a valve chamber exterior of said han-- dle with which said elbow communicates, a valve within the valve chamber, means extending from said valve chamber for connection with a source of oxygen supply the other end of said oxygen tube slidably entering said elbow, means-for moving said oxygen tube backward and forward to operate said Valve at its forward end, a liquid fuel tube extending through said blocks :in the handle with one end communicatingr with vthe interior of the inner tube 'surrounding the oxygen tube, and tubular means attached to its other end for connection with a source of fuel supply.

3. A Welding apparatus of th character described, comprising a burner head, a. burner nozzle detachably secured to one end ofsaid head, a' valve casing, means for detachably connecting the same to the burner head, a valve within said casing, an oxygen suppl itube, a threaded collar provided with space longitudinal slots connecting said valve to one end of said tube, a hollow handle, a block within one end of the handlc provided with an opening through which s'aid tube slidably extends and recessed at one end, another tube of larger diameter sur-- rounding said oxygen tube with one end supported on .said valve casing and provided with an annular flange at its other end, means for detachably securingr its hanged end to said block, another tube within said larger tube in contact therewith, an asbestus packing surrounding the oxygen tube within said inner tube, another block in the other end of said handle, a tubular elbow within an opening in said second block, a valve chamber exterior of said handle with which .said elbow communicates, a valve within the -ralve chamber for connection with a source of Aoxygen supply, the other end of said oxygen tube slidably entering the said elbow, a beveled gear. secured to said oxygen tube within said handle, another beveled gear meshing therewith, a bracket attached to the oxygen tube and supporting said second gear, said second gear being provided with a shank extending through'an elongated slot in the handle and provided with ahead at its outer end by means of which said loxygen tube may be moved to seat or unseat the valve at its forward end, a liquid fuel tube extending through said blocks in the handle with one end communicating with the recess in the endet' said `first block, and means attached to the other end of said first block for Aconnection with a. source of liquid fuel supply.

ft. A welding apparatus of the character described, comprising a burner head, a burner nozzle detachably secured to one end of said head, a valvecasingmeans for detachably connecting the same to the burner head., a valve within saidv casing, an oxygen pon lio

velve casing and proviled .cheinlier, ineens extending end., u liquid fuel tube extending supply ituloe, ineens for securing valve te one end of seid tube, a hollow handle, a block within. one enel of the handle proiidecl with en opening through which seid tube'slidehly exenole and recessed el; one enel, another tube leiger clernelter snrroun l-ing seid oxygen tube between. seid vulve easing; an@ the recessed end of said block, anothehloek- Wiehin the other end of the henclle, e enhnlaif elbow within :in opening in seid. lolocl, l

vel've' chamber exlerior oni seifl handle wlh which saidelbow communicates, e valve in seid chamber, nubes eidencling from seicl 'veli/e Chamber for connection with source o oxygen supply, the other end of sii-icl enf/gen 'tube elidalsly ,entering elbow, menne for moving ille seid oxygen supply gehe seat or unseat the relire it its forward end, a liqniel fuel tulle extending itlfirough seid blocks in the hendle with. one open enel f communicating with ehe reeese in the end of seid first hloelz and the :interior of the tube surrounding he oxygen tnh'e, ineens lashed lao the other eiiol oi snif?. 'uel lube 'for 'of the burner heed, si. valve 'Wiehin Seid easing,

on oxygei'i supply tuhe, ineens for securing; seid valve lo one end of seid liuhe, e hollow handle, :l block Within one end of said handle provided with en opening through which saicl lube. sliilahly eiitenlsK another Luhe of larger climneer surronilfling said foxygen supply lube with one enfl supported on seid with en annuler 'flange nl'. ite .other enel., ineens for cleteeliahly seeming ils flanged end co seid loloeh, enother Luhe within seiil'lerger tube in eontec' therewith, mother bleek in the other end of szii'cl handle, a 'l'i'llinler elbow Within en openingy in sziifl second block, e valve olieniher eX- erior of Said handle with which said elbow coiinnuniozites, e. valve within ehe valve vlloin seid valve chamber for connection with e Source of oxygen supply, lhe other end of seid oxygen tube sliiliihly entering seid elbow, means 'for moving said oxygen ruhe backward and for werd lo opeiae sind valve ne its forward Sold blocks in lhe handle with one eno coinxnuniceling with the interior of the inner tri-he surrounding; the oxygen tube, tubular ineens ntlacheiil'lo iis other end 'for ooni'ioc-- tion with :i soiirc of 'fuel Supply, nhular Connections between he Tourner heml. and

described, comprising e throiigh the valve ehziinher foe edmilling en elcli nonel. Supply or '.ixy'gen gas to the/burner heeel, enel e. Valve for controlling suoli edili--` Lionel supply.

G. A welding apparnles of the eheree'ler 'eserihefl, comprising e berne-f: heed,y e burner nozzle detnehahlj/ secured lo one enel of seid heed, a Valve easing', means fer ileqechahly eonneeing the seineo the burney head, :1. valve Within seid easing, onygen supply tube, e 4:hreelel collar provi "eel Willi spaced longitudinal slots connecting seidvelve to one end. oseid tube, a hollow handle, 1 hlocl Within one end ol the lienelle provided Wih en opening' through Wliieh 'seid tube sliclably extends en@ recessed oneend, another tnbe of larger fimneer sin rounding seid oxygen lube Wien lone enel sii'ppoed on velve casing enel proificlecl with an annuler, flange sie olier enel, ineens for deteehehlysecuring its lengel end lo seid block, enelher 'lube Within seid larger tube in eon'teo therewith, en eehestns peeking surrounding ehe oxygen tube Wizhin seid inner 'nlie,'enother block in the ether enel of saicl handle, e tubular elbow within an opening in seid. second hloel. e valve chamber exterior of said handle With-which seid elbow communicates, e. veli/e Within ehe valve chamber, Ineens extencl'lng from Seial Valve 'chamber :for connection with Source of oxygen supply', the other end .of Seid. oni/gen tube slidehly entering he Seial elbow, e beveled gear Secured to 'seni eej/gen nhe within. seid henllle, another beveled ,gear meshing itherew'eh, e hreelret attached so the oxygen nhe :incl supporting seid geen sai second gear being; provide with e shank ezz'encl'ing ehrough en elongated. slo'; in the handle and provided with e heed el; itsl oulei enel by ineens of which seid oxygen tuloe may he ino-ved to seat or unseel'lsho' valve el its 'forward end, e liquid fuev whe extending through Seial bloclfs'-lin ehe .handle with one end communi-eating with hereeese inA the end of said rst block, ineens etbeelienl to the obher end or" Seid nel tuhe for szonm nection with a source of liquid Jnel supply, ubnler Ieonneetione 'between the burner heeel und l'he Valve chamber for admitting en :iol-- dilionzi-l. supply of oxygen ,cias to the horney: head, end e valve for controlling' such efli tional supply.

7. il welding apparatus of the character Berner heed, e burner nozzle detachably secured no one end. oi' Saifl'heel, e valve-casing, ineens for deeclgahly Connecling the saune o the'burner hoed. a valve within saicl easing, en oxygen: supply tube, means for securing seid valve lo one encl of said tube, ay hollow hemllee block Within one. enel of the handle prei/ideal with en openinbOrihrougjh which 'Seidfuhe sliclably extends :incl reoessel et one end, another tiihe of larger cliemeer surrounding second Vao said oxygen tube betiveen said valve casing and this recessed enkd of said block, another block Within thel other and of* the handle, a.

tubular elbow within an opening in saidV block, a yvalve chamber exterior of said handle with which said elbow communicates,l

a valvesaid chamber, tubes extending from 'saidvalve chamber for connection with a sourcel of oxygen supply, the other end of said oxvgen tube slidably entering said elbow, means for moving the said oxygen supply tube to seat or unseat the valve at its forward end, a liquid rfuel tube entending through said blocks in the handle with one open end eommunicatingwith the recess in the .end of said first block and the interior of the tube surrounding the oxygen tube, means attached to the other end of said fuel tube for connection with a source of fuel supply, a second oxygen tube detachably connected at one end to the burner head with its other end supported in a recess in the block at the outer end oi the handle, tubular passagewuys leading. from said recess to and communicating with the valve chamber, there being an opening in sai-d second oxygen tube adjacentx7 its end Within said recess registering with said passugewaiys whereby an additional supply of oxygen may be admitted to the burner head, and a valve for opening and shutting oit" communication. be-

' tween said second oxygen tube and said passagen/cys.

8, A Welding apparatus of the character described, comprising a burner head, a burner nozzle detachably connected to one end of the same, a vaive casing, means for detachbly connecting the same to the other end of the burner head, a. valve Within said' casing, an oxygen supply tube, means for securing said valve toone end of said tube, a hollow handle, a block Within one end'of said handle provided with an opening through which said tube slidably extends, another tube of larger diameter surrounding said oxygen supply tube with one end supported on said valve casing and vprovided with an annular iiange at its other end, means ior detachably securing its flanged end to said block7 another tube Within said larger tube in contact therewith, another block in the other end of said handle,'a tubular elbow within an opening in said second block, a valve chamber exterior of said handle with which said elbow communicates, a valve within the valve chamber, means extending from said valve chamber for connection with a source of oxygen supply,the other end of said oxygen tube slidaby entering' said elbow` means for moving said oxygen' tube backward and forward to operate said valve at its forward end, a liquid fuel tube extending through said blocks in the handle with one end communicating with the interior of the inner tube surrounding the oxygen tube, tubular means attach-ed to its nmitted to the burner head, and a 'Valve for opening and shutting oil' communication betwee-n said second oxygen tube and said passageways. I

9. A Welding apparatus of the character described, comprising a burner head, a burner nozzle detachably secured to one end of said head, a valve casing, means for detachably connecting the saine to the burner head, a valve within said casing, an oxygen supply tube, athreaded collar provided with spaced longitudinal Shit-s connecting 'said valve to one'end of said tube, ahollow handle a block Within one end ,of the handle provided with an opening through Which'said tube slidably extends and recessed at one end, another tube ot' larger diameter sur- Lrounding said oxygen tube Wit-h one end supported -on said valveacasing and provided with an vannular flange at its other end. means for detachablysecurmg its flanged end to said block, another tube within saidlarger tube in Contact therewith, an asbestus packing surrounding the oxygen tube within said inner tube, another block in the other end of said handle, a tubular elbow Within an opening ,in -seeond block, a valve chamber exterior of said handle with which :said elbowncommunicates, a valve within the valve chamber, means extending from` said valvekehamber for connection with a source or' oxygen supply, the other end of said oxyf@ gen tube slidably.- entering the said elbow, a beveled gear secured to said oxygen tube Within said handle, another beveled gear meshing therewith, a bracket attached 'to the voxygen [tube and suppbrting saidsecond gear, said second gea-r being provided with a shank extending through an elongated slot in the handle and provided with ahead at its outer end by means of which said oxygen tube may be moved to seat or unseatth'e valve at its forward eud, 'a liquid fuel tubel Vextending 'through said blocks in the handle Awith one end communicating Withthe recessin the end of said first block, means attached to the other end of said :fuel tube for connestion with a source ofvliquid fuel supplypirl seeond` oxygen tube detachablyv connected at one end to the burner head with its other end supported in a recess in the block 'at' outer end of the handle, tubular passagevyays leading from said recessy to and eoininiuucatice iso

its vend wrlnn said reeese regetermg with said passageway@ whereby an additional the enel of Sad :first opening supply of oxygenl magy be admitted to elle burner bead, and a valve for opening shutting olf ebmmunleatlon beween sold Second oxygen tube and said. paseagewaye.

l0. A Welding apparatus of the @hamer/er; described,V comprising; a burner head, a burner nozzle Cleaelably secured. *no one, enrl of vsalcl bead, a Valve caenw, means lor elezeelrably connecting rne same ro the burner heed, a, valve Wgbin Sad easlng, an oxygenv supply tube, means 1for securlng sacl Valve to one end. o1c said tube, a bellow handle, a. block Within oneend of tbe handle provided with an ,opening througl. which said ube sldably 'extends and recessed at one end, another tube olarger diameter surrounding said oxygen aube between said valve easing and he'recessecl end of Said bleek, another. block Within Jrlle other enrl of' the handle., a tubular elbow wltl'lln an opening ln Said block, a valve Chamber exterlor of salcl bon-- elle with Wloh salrl relbow communicates, a Valve in said chamber, tubes extending; from Said. Valve chamber 'for connection wvlb. e source of oxygensupply, 'elle other nel of said oxygen tnbe'wslclably entering earl elbow, means 'for moving' `the salir' oxygen Supply tube 'to seat or unseat the valve its orwar brough said blocks in tbe handle with one open end, communicatingwill 'tbe recess ln block anal tbe interior oil? 'the tube surrounding tbe oxygen 4ube, meane attac/bed lo tbe 'other end. of said fuel for connection with a Source ofiuel Supply, another oxygen supply tube, means for flegaelably securing' one end thereof tio elle buroer bead, said lube extending through an the' bundle, its other end being ribbed into a recess ln tbe bleekv in the other end of the handle and, provided Wl'b en opening ,in register with bore in said bloei, salrl block being also provided Wcb other bores eem inunoating Willa. said. ret bore, tubnlar con nectons between tbe open end of one or said bores anrl sacl Valve chamber, a. needle valve elle ebly supporlecl in an ope-ning in- Seial block, e slflable sleeve -forming e seat for 4sacl valve, a Spiral spring in Contact will! Safl sleeve, earl needle valve beingl pro vided Wltb'an opening. a lirgger, and eonneoterl means by which said opening is brougllt into ,register with the open enel of sarl Erst bore the renson of said Spring, J@hereby establishing eommunieaon beween the burner bead and valve cbember 'for tbe admission o1". an aflrltonal supply of oxygen gas lo the burner lleael.

ll. .la Welding apparatus of @be CberamerI described, comprising e burner lleacl, a loir-:n-y

in bhe bleek in tbeforwarcl end of v ,l er neer, e 'cletaclrably l@maneetecl ro one enel or tbe same, a valve easing, means for de# aebably eonneoeilng the same to tbe other end or tbe burner heed., a valve Within, Said easing, an, :irygen supply tube, meane for securing said 7valve lo one end of said lube, a, hollow handle, a block 'Wltbn one *en-Ll of sarl handle provided with an open- .;'irlg' through which seid tube sldably en tende. another aube of larger diameter surrounding Seial oxygen supply Lube with one enel supporteel on sael valve casing and provlclerl with an annular llange at its other enel, meanelfor detachably securing its enel to said block, another tube wille in sacl larger tube .in Contact therewith, anoberbloclr 'in the orber end of ea'ol handle, a, ubular elbow Within an. opening in Said Seconfl bloelr, a valve chamber exterior or' said handle with which said elbow communi?- earee, Valve .Within the Velve chamber, 'means extending :from seid valve chamber or connection with a souree or oxygen supply, the other end or said oxygen Stube slidably entering Said elbow, means for' moving said. oxygen mbe backward and 'forward ro operate selil Valve at ,ibs 'forward end, e liquid *fuel `tube, extending ibrougb said. blockln tbe handle with one enel commonlcazi'ng with alle interior of the inner lube slrlrronncllng zlre. oxygen ube, bubuler means attached/to other enel for eonneeton with aeouree of fuel supply, another oxygen snp ,ply bebe, rneansor lelaobably Securing one endl Alre'reo'r ille burner beae, ealel tube en` tending' rbrougbjon opening in. tbe block in be rorwer enel ofthe banle, its other enel being lbted into in the block ln tbe other end or' elle bzanclle and provided with an opening in egeer with a bore in said bleek, .ea'lfl block being also provlcleel 'bore, tubuleneonneoons beween the open end .o' one" valve Chamb r', a needle 'qalve slilclably supported 'ln 'sinI opening in said bleek, e ellrl 'eble sleeve'lorming aeea for Vsal. "valve, a spiral sprng in eonlnao: Wllr seid sleeve, seid needle vvalve being groeide@ Wlblr an opening, a brig which sel opening le brongb into register Wlh the open eefl'ol said lrs; bore agalioe libe 'tension of saldi spring, thereby eeabi lishng eomrnanleelon bel'ween rbe burner bead an valve chamber or the arlrneslon of 'an ailclional supply o2 oxygen. gas bo the borner?beafLl l 12,4%, Welrlrg .apparatus of elle ol'rareezer rleserbecl, eomprsng a burner'lmad, e, bemer nozzle detaebably Secured one f l o1? een-l heeel/e valve easing, me ably connecting the Sarne'to elle burner '.beael, a valvev wlb'lneafl casing, oxygen son ply ube, a threaded colla-r provlclerl Wlla epaeefl longtainal slots eonneelng ealrl ger, enel 'Coioneeed means by Wb other bores oornmunloetng wo said.

said bores eetl ear-rl valve to one end of said tube,

i f handle, a block within one' end of the handle provided with an opening through which said tube slidably extends and recessed at one end, another tube of larger diameter surrounding said oxygen tube with one end supported on saidvalvecasing and rovided with an annular flange at its ot 1er end means Afor detachably securing its flanged end tovsaid block, another tube within said lar er tube in contact therewith, an asbestus .pac ing surrounding the oxygen tube within said inner tube another block in the other end 'of aid handle,'a tubular elbow within an o ening in said second block, a Valvecham er exterior of said handle with which said elbow communicates, a valve within the valve chamber, means extending from said valve chamber for connection with a source of oxyen'supplythe other end of said oxygen tu e'sli aby entering the said elbow,

y va beveled gear secured to said oxygen tube within said handle, another beveled gear meshing therewith, a bracket attached to the oxygen tube and supporting said second gear,

said -second gear being provided wit-h a shank extending through an elongated slot in the handle and provided with 'a head at its cuter end by means of` which said oxygen tube may be moved to seat or unseat the valve at its forward end, a liquid fuel tube extending p a hollow end communicating with the recess in the end of said first block, means attached to the other endof said fuel tube -for .connection with a source of liquid fuel supply, another oxygen supply tube, means for detachably'securing one end thereof to the burner head, said tube extending through an opening in the block in the forward vend-of the handle, its other end beingtted l'through said blocks in the handle with one I into a recess in the block in the other end provided with an opening, a trigger, an h connected means by' which said ope'nn is brought into register with the open en of said first'bore against the tension of said spring, thereby establishing communication between the burner head and rvalve chamber for the admission of an additional supply of oxygen gas to the burner head.

Signed bg me this 15th of February, 1927. REDERICK `W. BECKER.

`with said sleeve, said needle valve being' 

